What are the best practices for handling nullptr in C++?

What are the best practices for handling nullptr in C++?

When handling nullptr in C++, it's important to always check for null before dereferencing pointers. This prevents runtime errors.

Can you give me an example of checking for nullptr?

Sure! You can use an if statement like this: if (ptr != nullptr) { /* use ptr */ }.

What about using smart pointers instead?

Using smart pointers like std::unique_ptr or std::shared_ptr is a great practice as they automatically manage memory and reduce the risk of nullptr dereferencing.

Are there any specific scenarios where I should avoid using nullptr?

Yes, avoid using nullptr in situations where you expect a valid object, such as when passing pointers to functions that require valid references.